Vacuum Non-Bypass Closes Heater Valve

Temperature tested to 270 degrees F; Pressure tested to ensure leak free design; Vacuum controlled; Application specific design

Buick Century Sedan / Coupe (79-77); Electra Sedan / Coupe (80-77); Estate Wagon (80-77); Lesabre Sedan / Coupe (80-77); Regal Sedan / Coupe (77); Riviera (80-77) >> Cadillac Deville (84-79); Eldorado (85-79); Fleetwood / Brougham (90-79);